Since this was 25 years ago, your memory might have been altered of this event. My guess, is something tends to happen to me, happened to you. This was a lucid dream, which later on you just thought was a real memory. This would explain why "real world" objects reacted to the sine wave, because...
Sorry if i posted in the wrong forum, but i have a question. Some of you may know this equation:
Is it possible to use it for simple gr11 and 12 physics?